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Breast Cancer: Introduction What is cancer? Cancer starts when cells in the body change (mutate) and grow out of control. Your body is made up of tiny building blocks called cells. Normal cells grow when your body needs them, and die when your body doesn't need them any longer

IgA Vasculitis in Children What is IgA vasculitis in children? IgA vasculitis is also called Henoch-Schönlein purpura. It's not contagious. It involves swelling (inflammation) of small blood vessels. The swollen blood vessels leak into the skin, joints, intestines, and kidneys

Granulomatosis with Polyangiitis (GPA) What is granulomatosis with polyangiitis? Granulomatosis with polyangiitis (GPA) is an autoimmune disorder. An autoimmune disorder occurs when the body's immune system attacks and destroys healthy tissue. GPA causes inflammation, swelling

How Were the COVID-19 Vaccines Made So Fast? Vaccines for COVID-19 are now widely available. In the past, it’s taken many years to create a vaccine that’s ready for public use. But over decades of creating vaccines, research groups and public health agencies have been making the

Infectious Mononucleosis (Mono) What is infectious mononucleosis (mono)? Infectious mononucleosis is a type of infection. It causes swollen lymph glands, fever, sore throat, and often extreme fatigue. It's often spread through contact with infected saliva from the mouth. Symptoms

Breast Cancer: Surgery Surgery is a common treatment for breast cancer. It’s done to remove as much of the cancer as possible. You have many surgical choices. The type of surgery you need depends on: The size of the breast lump or tumor and where it is in your breast. The type of

Meckel Diverticulum What is Meckel diverticulum? Meckel diverticulum is a small pouch in the lower wall of the small intestine. The normal intestine does not have a pouch. It's near where the small and large intestines meet. The pouch is left over from when your child's digestive

Stridor in Children What is stridor in children? Stridor is a noisy or high-pitched sound with breathing. It's a sign that the upper airway is partially blocked. It may involve the nose, mouth, throat, voice box (larynx), or windpipe (trachea). What causes stridor in a child

Fetal Alcohol Spectrum Disorder (FASD) What is fetal alcohol spectrum disorder (FASD)? A baby born to a person who drinks alcohol during pregnancy can have many problems. This is called fetal alcohol spectrum disorder (FASD). FASD includes: Fetal alcohol syndrome (FAS). This is